Noise Colors



Overview and implementation of noise functions, focusing on their power spectrum.

1. White noise


The power spectral density is equivalent to $\large \frac{1}{f^0}$, which is constant.

2. Pink noise


The power spectral density is equivalent to $\large \frac{1}{f}$, which decreases 3 dB per octave.

3. Brown noise


The power spectral density is equivalent to $\large \frac{1}{f^2}$, which decreases 6 dB per octave.

4. Blue noise


The power spectral density is equivalent to $\large f$, which increases 3 dB per octave.

5. Violet noise


The power spectral density is equivalent to $\large f^2$, which increases 6 dB per octave.

6. The colours of noise